In astrology, a horoscope is a chart or diagram representing the positions of the Sun, Moon, and planets, the astrological aspects, and sensitive angles at the time of an event, such as the moment of a person's birth. The word "horoscope" is derived from Greek words meaning "a look at the hours" (horoskopos, pl. horoskopoi, or "marker(s) of the hour.") Other commonly used names for the horoscope in English include astrological chart, astro-chart, celestial map, sky-map, star-chart, cosmogram, vitasphere, radical chart, radix, chart wheel, or simply chart, among others. It is used as a method of divination regarding events relating to the point in time it represents and forms the basis of the horoscopic traditions of astrology.
In common usage, horoscope often refers to an astrologer's interpretation, usually through a system known as sun sign astrology. In particular, many newspapers and magazines carry horoscope columns based on celestial influences in relation to the placement of the Sun in the zodiac on the day of a person's birth, identifying the person's sun sign.